Patents by Inventor Joanna M. Robertson

Joanna M. Robertson has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20190284657
    Abstract: A system and method for recovering a metal value from a metal-bearing ore material are provided. A metal-bearing ore can be mixed with certain substances and to form an agglomerated ore. In an intermediate state, between agglomeration and heap formation, bacteria can be added to the metal-bearing ore material to produce an augmented ore. The augmented ore can then be formed into a heap. Bacteria from the heap may be fortified to assist in bacterial growth.
    Type: Application
    Filed: May 29, 2019
    Publication date: September 19, 2019
    Applicant: FREEPORT MINERALS CORPORATION
    Inventors: Joanna M Robertson, Christine Rae Green, Gabriel Elias Bowman
  • Patent number: 10370738
    Abstract: A system and method for recovering a metal value from a metal-bearing ore material are provided. A metal-bearing ore can be mixed with certain substances and to form an agglomerated ore. In an intermediate state, between agglomeration and heap formation, bacteria can be added to the metal-bearing ore material to produce an augmented ore. The augmented ore can then be formed into a heap. Bacteria from the heap may be fortified to assist in bacterial growth.
    Type: Grant
    Filed: September 5, 2013
    Date of Patent: August 6, 2019
    Assignee: FREEPORT MINERALS CORPORATION
    Inventors: Joanna M Robertson, Christine Rae Green, Gabriel Elias Bowman
  • Publication number: 20190177864
    Abstract: Various embodiments provide a process roasting a metal bearing material under oxidizing conditions to produce an oxidized metal bearing material, roasting the oxidized metal bearing material under reducing conditions to produce a roasted metal bearing material, and leaching the roasted metal bearing material in a basic medium to yield a pregnant leach solution.
    Type: Application
    Filed: February 12, 2019
    Publication date: June 13, 2019
    Applicant: FREEPORT MINERALS CORPORATION
    Inventors: Joanna M. Robertson, Thomas R. Bolles, Wayne W. Hazen, Lawrence D. May, Jay C. Smith, David R. Baughman
  • Patent number: 10246789
    Abstract: Various embodiments provide a process roasting a metal bearing material under oxidizing conditions to produce an oxidized metal bearing material, roasting the oxidized metal bearing material under reducing conditions to produce a roasted metal bearing material, and leaching the roasted metal bearing material in a basic medium to yield a pregnant leach solution.
    Type: Grant
    Filed: April 15, 2016
    Date of Patent: April 2, 2019
    Assignee: FREEPORT MINERALS CORPORATION
    Inventors: Joanna M Robertson, Thomas R Bolles, Wayne W Hazen, Lawrence D May, Jay C Smith, David R Baughman
  • Publication number: 20180298505
    Abstract: Systems and methods for basic leaching are provided. In various embodiments, a method is provided comprising leaching a slurry comprising a copper bearing material and an ammonia leach medium, adding copper powder to the slurry, separating the slurry into a pregnant leach solution and solids, and performing a solvent extraction on the pregnant leach solution to produce an loaded aqueous stream.
    Type: Application
    Filed: June 18, 2018
    Publication date: October 18, 2018
    Applicant: FREEPORT MINERALS CORPORATION
    Inventors: Joanna M Robertson, Thomas R Bolles, Dennis D Gertenbach
  • Patent number: 10006133
    Abstract: Systems and methods for basic leaching are provided. In various embodiments, a method is provided comprising leaching a slurry comprising a copper bearing material and an ammonia leach medium, adding copper powder to the slurry, separating the slurry into a pregnant leach solution and solids, and performing a solvent extraction on the pregnant leach solution to produce a loaded aqueous stream.
    Type: Grant
    Filed: November 13, 2015
    Date of Patent: June 26, 2018
    Assignee: FREEPORT MINERALS CORPORATION
    Inventors: Joanna M Robertson, Thomas R Bolles, Dennis D Gertenbach
  • Publication number: 20160230296
    Abstract: Various embodiments provide a process roasting a metal bearing material under oxidizing conditions to produce an oxidized metal bearing material, roasting the oxidized metal bearing material under reducing conditions to produce a roasted metal bearing material, and leaching the roasted metal bearing material in a basic medium to yield a pregnant leach solution.
    Type: Application
    Filed: April 15, 2016
    Publication date: August 11, 2016
    Applicant: FREEPORT MINERALS CORPORATION
    Inventors: Joanna M. Robertson, Thomas R. Bolles, Wayne W. Hazen, Lawrence D. May, Jay C. Smith, David R. Baughman
  • Patent number: 9340849
    Abstract: Various embodiments provide a process roasting a metal bearing material under oxidizing conditions to produce an oxidized metal bearing material, roasting the oxidized metal bearing material under reducing conditions to produce a roasted metal bearing material, and leaching the roasted metal bearing material in a basic medium to yield a pregnant leach solution.
    Type: Grant
    Filed: December 17, 2012
    Date of Patent: May 17, 2016
    Assignee: FREEPORT MINERALS CORPORATION
    Inventors: Joanna M Robertson, Thomas R Bolles, Wayne W Hazen, Lawrence D May, Jay C Smith, David R Baughman
  • Publication number: 20160068977
    Abstract: Systems and methods for basic leaching are provided. In various embodiments, a method is provided comprising leaching a slurry comprising a copper bearing material and an ammonia leach medium, adding copper powder to the slurry, separating the slurry into a pregnant leach solution and solids, and performing a solvent extraction on the pregnant leach solution to produce an loaded aqueous stream.
    Type: Application
    Filed: November 13, 2015
    Publication date: March 10, 2016
    Applicant: FREEPORT MINERALS CORPORATION
    Inventors: Joanna M. Robertson, Thomas R. Bolles, Dennis D. Gertenbach
  • Patent number: 9187803
    Abstract: Systems and methods for basic leaching are provided. In various embodiments, a method is provided comprising leaching a slurry comprising a copper bearing material and an ammonia leach medium, adding copper powder to the slurry, separating the slurry into a pregnant leach solution and solids, and performing a solvent extraction on the pregnant leach solution to produce an loaded aqueous stream.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: November 17, 2015
    Assignee: FREEPORT MINERALS CORPORATION
    Inventors: Joanna M Robertson, Thomas R Bolles, Dennis D Gertenbach
  • Patent number: 9175366
    Abstract: Systems and methods for basic leaching are provided. In various embodiments, a method is provided comprising leaching a slurry comprising a copper bearing material and a leach medium comprising ammonia and ammonium carbonate, adding copper powder to the slurry, separating the slurry into a pregnant leach solution and solids, and performing a solvent extraction on the pregnant leach solution to produce an loaded aqueous stream.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: November 3, 2015
    Assignee: FREEPORT MINERALS CORPORATION
    Inventors: Joanna M Robertson, Thomas R Bolles, Dennis D Gertenbach
  • Publication number: 20150225809
    Abstract: A system and method for recovering a metal value from a metal-bearing ore material are provided. A metal-bearing ore can be mixed with certain substances and to form an agglomerated ore. In an intermediate state, between agglomeration and heap formation, bacteria can be added to the metal-bearing ore material to produce an augmented ore. The augmented ore can then be formed into a heap. Bacteria from the heap may be fortified to assist in bacterial growth.
    Type: Application
    Filed: September 5, 2013
    Publication date: August 13, 2015
    Applicant: Freeport Minerals Corporation
    Inventors: Joanna M Robertson, Christine Rae Green, Gabriel Elias Bowman
  • Patent number: 8920773
    Abstract: Various embodiments provide a process roasting a metal bearing material under oxidizing conditions to produce an oxidized metal bearing material, roasting the oxidized metal bearing material under reducing conditions to produce a roasted metal bearing material, leaching the roasted metal hearing material in a basic medium to yield a pregnant leach solution, conditioning the pregnant leach solution to thrill a preprocessed metal bearing material; and leaching the preprocessed metal bearing material in acid medium.
    Type: Grant
    Filed: December 17, 2012
    Date of Patent: December 30, 2014
    Assignee: Freeport Minerals Corporation
    Inventors: Joanna M. Robertson, Thomas R. Bolles, Wayne W. Hazen, Lawrence D. May, Jay C. Smith, David R. Baughman
  • Publication number: 20140260806
    Abstract: Systems and methods for basic leaching are provided. In various embodiments, a method is provided comprising leaching a slurry comprising a copper bearing material and an ammonia leach medium, adding copper powder to the slurry, separating the slurry into a pregnant leach solution and solids, and performing a solvent extraction on the pregnant leach solution to produce an loaded aqueous stream.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 18, 2014
    Applicant: FREEPORT-MCMORAN CORPORATION
    Inventors: Joanna M. Robertson, Thomas R. Bolles, Dennis D. Gertenbach
  • Publication number: 20140260807
    Abstract: Systems and methods for basic leaching are provided. In various embodiments, a method is provided comprising leaching a slurry comprising a copper bearing material and a leach medium comprising ammonia and ammonium carbonate, adding copper powder to the slurry, separating the slurry into a pregnant leach solution and solids, and performing a solvent extraction on the pregnant leach solution to produce an loaded aqueous stream.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 18, 2014
    Applicant: FREEPORT-MCMORAN CORPORATION
    Inventors: Joanna M. Robertson, Thomas R. Bolles, Dennis D. Gertenbach
  • Patent number: 8012318
    Abstract: A system and process for recovering copper from a copper-containing ore, concentrate, or other copper-bearing material to produce high quality cathode copper from a leach solution without the use of copper solvent/solution extraction techniques or apparatus. A process for recovering copper from a copper-containing ore generally includes the steps of providing a feed stream containing comminuted copper-containing ore, concentrate, or other copper-bearing material, leaching the feed stream to yield a copper-containing solution, conditioning the copper-containing solution through one or more physical or chemical conditioning steps, and electrowinning copper directly from the copper-containing solution in multiple electrowinning stages, without subjecting the copper-containing solution to solvent/solution extraction prior to electrowinning.
    Type: Grant
    Filed: April 29, 2010
    Date of Patent: September 6, 2011
    Assignee: Freeport-McMoran Corporation
    Inventors: John O Marsden, Robert E Brewer, Susan R Brewer, Joanna M Robertson, David R Baughman, Philip Thompson, Wayne W Hazen, Christel M. A. Bemelmans
  • Publication number: 20100206741
    Abstract: A system and process for recovering copper from a copper-containing ore, concentrate, or other copper-bearing material to produce high quality cathode copper from a leach solution without the use of copper solvent/solution extraction techniques or apparatus. A process for recovering copper from a copper-containing ore generally includes the steps of providing a feed stream containing comminuted copper-containing ore, concentrate, or other copper-bearing material, leaching the feed stream to yield a copper-containing solution, conditioning the copper-containing solution through one or more physical or chemical conditioning steps, and electrowinning copper directly from the copper-containing solution in multiple electrowinning stages, without subjecting the copper-containing solution to solvent/solution extraction prior to electrowinning.
    Type: Application
    Filed: April 29, 2010
    Publication date: August 19, 2010
    Applicant: FREEPORT-MCMORAN CORPORATION
    Inventors: John O. Marsden, Robert E. Brewer, Susan R. Brewer, Joanna M. Robertson, David R. Baughman, Philip Thompson, Wayne W. Hazen, Christel M.A. Bemelmans
  • Patent number: 7736488
    Abstract: The present invention relates generally to a process for recovering copper and/or other metal values from a metal-bearing ore, concentrate, or other metal-bearing material using pressure leaching and direct electrowinning. More particularly, the present invention relates to a substantially acid-autogenous process for recovering copper from chalcopyrite-containing ore using pressure leaching and direct electrowinning in combination with a leaching, solvent/solution extraction and electrowinning operation.
    Type: Grant
    Filed: December 29, 2008
    Date of Patent: June 15, 2010
    Assignee: Freeport-McMoran Corporation
    Inventors: John O Marsden, Robert E Brewer, Susan R Brewer, Joanna M Robertson, David R Baughman, Philip Thompson, Wayne W Hazen, Christel M. A. Bemelmans
  • Patent number: 7722756
    Abstract: A system and process for recovering copper from a copper-containing ore, concentrate, or other copper-bearing material to produce high quality cathode copper from a leach solution without the use of copper solvent/solution extraction techniques or apparatus. A process for recovering copper from a copper-containing ore generally includes the steps of providing a feed stream containing comminuted copper-containing ore, concentrate, or other copper-bearing material, leaching the feed stream to yield a copper-containing solution, conditioning the copper-containing solution through one or more physical or chemical conditioning steps, and electrowinning copper directly from the copper-containing solution in multiple electrowinning stages, without subjecting the copper-containing solution to solvent/solution extraction prior to electrowinning.
    Type: Grant
    Filed: November 19, 2008
    Date of Patent: May 25, 2010
    Assignee: Freeport-McMoran Corporation
    Inventors: John O Marsden, Joanna M Robertson, Robert E Brewer, Susan R. Brewer, legal representative, David R Baughman, Philip Thompson, Wayne W Hazen, Christel M. A. Bemelmans
  • Patent number: 7666371
    Abstract: The present invention relates generally to a process for recovering copper and other metal values from metal-containing materials through pressure leaching operations. In accordance with the various aspects of the present invention, metal-containing pregnant leach solutions from pressure leaching operations need not be significantly diluted to facilitate effective metal recovery using solvent extraction and electrowinning.
    Type: Grant
    Filed: December 7, 2007
    Date of Patent: February 23, 2010
    Assignee: Freeport-McMoran Corporation
    Inventors: John O Marsden, Robert E Brewer, Joanna M Robertson, Wayne W Hazen, Philip Thompson, David R Baughman